• Title/Summary/Keyword: 음향학

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An Inquiry Over Characteristics of British Acoustics in the Nineteenth Century: Focusing on Its Interaction with Music (19세기 영국 음향학의 특성 탐구: 음악과의 상호작용을 중심으로)

  • Ku, Ja-Hyon
    • The Journal of the Acoustical Society of Korea
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    • v.25 no.2
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    • pp.72-77
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    • 2006
  • British acoustics in the nineteenth century is important as a foundation for modern acoustics in the history of acoustics. The Purpose and objective of acoustics was different from those in modern age. and musical motivation was distinguished among them. This study intends to clarify various aspects of interaction between music and acoustics in nineteenth-century Britain by examining related materials in both published and unpublished forms. Then music Provided acoustics with instruments, subjects, and personnel, and acoustics did much as musical science in helping to improve and develop musical scales and enhancing the exactness of measurement of absolute pitches. Music played an essential role in developing acoustics to a modern discipline in Europe, especially in Britain. all through the nineteenth century.

American Acoustician Alfred M. Mayer's Acoustical Research (미국 음향학자 앨프레드 메이어의 음향학 연구)

  • Ku, Ja-Hyon
    • The Journal of the Acoustical Society of Korea
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    • v.28 no.1
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    • pp.44-50
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    • 2009
  • While American acoustics had been lagged behind European one in the nineteenth century, Alfred Mayer greatly contributed to enhance American experimental acoustics. He inherited experimental skills in collaboration with Koenig in Paris, and got chances to obtain research ability from leading researchers such as Rayleigh during his visit to England. His accomplishments, which brought him fame in Europe, included the creation of the acoustic pyrometer which measured the high temperature by means of the thermal change of the sound velocity, the discovery of mosquito's hearing by selective resonance, the formalization of the duration of the residual sensation of sound, the invention of the topophone which searched for the direction of the sound source, the construction of the apparatus for visualizing the frequency of sound and so on. He not only added new research results to Europe's acoustics but applied acoustics to physical education to help produce the next generation of American acousticians.

A Brief Review of Noise Science (소음과학과 그 이해)

  • 이수갑
    • Journal of the KSME
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    • v.35 no.10
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    • pp.933-938
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    • 1995
  • 소음 공해의 문제는 수세기에 걸쳐 지속되어왔고, 현대 사회는 인간과 기계에 의한 소음으로 조용하고 평온한 삶을 영위하기가 점점 더 힘들어지고 있다. 소음은 일반적으로 원하지 않는 소리라고 정의된다. '원하지 않는'이란 말이 소음(noise)을 물리학적인 소리(sound)와 구멸하는 것이다. 아름다운 음악도 어떤이에겐 청각적 혼돈 상태로 느껴질 수 있듯이 어떠한 주어진 소 리를 '소음'이라 서술하는 것에는 심리 음향학(psychoacoustics)적인 요소가 강하므로 소음에 대한 연구는 그저 단순한 과학이 아니지만 그럼에도 불구하고 이는 음향학에 단단히 기초하고 있고 그전문어들을 이용한다. 따라서 음향학의 기초적인 이론과 심리음향학에 대하여 간단히 살펴보고 소음의 영항과 소음 환경을 이해한 뒤, 소음의 제어에 대한 예를 보는 것으로 소음 과학에 대한 개략적인 이해를 돕고자 하는 것이 이 글의 목적이다.

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Comparative analysis of inter-Korean acoustic terminology and proposal for integration (남북한 음향학 전문용어 비교 분석 및 통합안 제시)

  • Jiwan Kim
    • The Journal of the Acoustical Society of Korea
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    • v.42 no.4
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    • pp.271-284
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    • 2023
  • This study compared 431 acoustic terminology of South Korean industrial standards and North Korean national standards based on IEC 60050-801:1994 international standards. In addition, this study attempted to integrate acoustic terminology between the two Koreas. There were 139 (32.3 %) AA types with exactly the same form of terminology, 35 (8.1 %) Aa types with different spellings due to differences in linguistic norms, and 257 (59.6 %) AB types with completely different forms. Morphologically, there were more than twice as many different types of terminology as the same type. In the integration of acoustic terminology with different forms, 178 (61 %) North Korean terminology and 76 (26 %) South Korean terminology were adopted. we would like to overcome the limitations of this study through the following suggestions. First, the government should support academic exchanges between the two Koreas and encourage the establishment of common standards for acoustic terminology. Second, efforts should be made to share acoustic terminology data between the two Koreas and publish an integrated acoustic terminology dictionary. Third, South and North Korea should jointly launch a terminology committee to make efforts to revise international standards together.

Inquiring Activities on the Acoustic Phenomena Using Sound Card in Personal Computer (사운드카드를 이용한 음향학 탐구학습 사례)

  • Lee, Seung-Koog;Lee, Jong-Rim;Kim, Hyun-Byuk;Kim, Young-H.
    • The Journal of the Acoustical Society of Korea
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    • v.30 no.5
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    • pp.249-254
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    • 2011
  • Inquiring activities on the acoustic phenomena have been carried out by using a sound card installed in a personal computer. A sound card is cheaper and more accessible to the students than the precision equipment such as a function generator or an oscilloscope. The students record the sounds from various acoustic phenomena to the sound card. Then they analyze the frequency spectrums of that sounds by using a program. Inquired phenomena include beat by two tuning forks, sound from Rijke tube, pouring sound, breaking of a wine glass and pop-up sound of a wine bottle. Through these activities students perform quantitative analysis of various phenomena due to superposition, resonance and standing wave.

수중음향학에 대한 소개

  • 김재수
    • Journal of KSNVE
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    • v.8 no.2
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    • pp.223-226
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    • 1998
  • 본 원고에서는 다음과 감은 순서로 수중음향을 소개하고자 한다. 2장에서는 수중음향의 발전배경과 역사, 3장에서는 수중음향의 구성요소, 4장에서는 수중음향의 최근의 연구분야에 대해 논하고, 5장 맺음말에서는 요약을 하였다.

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